Answer:
0.952
Step-by-step explanation:
we know that
here standard error =std deviation÷(n)^1/2
=15/(25)^1/2 =15/5=3
Assuming that IQ scores are normally distributed
Now, probability of a Type II error
=P(X<110) = P(Z<(110-105)/3)=P(Z<1.67)
=0.952
the power of the test if the true population mean is 105 = 0.952
4
cause then 12-6=6
You do parenthesis first and get six, then you subtract
Answer:
Step-by-step explanation:
If XY bisects DF at point E, then DE = EF.
Given DE = 2y and EF = 8y-3
2y = 8y-3
subtract 8y from both sides
2y-8y = 8y-8y-3
-6y = -3
y = 3/6
y = 1/2
y = 0.5
DF = DE+EF
DF= 2y+8y-3
DF = 10y - 3
DF = 10(0.5)-3
DF = 5-3
DF = 2
